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Rev 2479 Rev 2606
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#
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#
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# Copyright (c) 2006 Ondrej Palkovsky
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# Copyright (c) 2006 Ondrej Palkovsky
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# All rights reserved.
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# All rights reserved.
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#
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#
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# Redistribution and use in source and binary forms, with or without
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# modification, are permitted provided that the following conditions
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# are met:
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# are met:
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#
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#
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# - Redistributions of source code must retain the above copyright
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# - Redistributions of source code must retain the above copyright
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#   notice, this list of conditions and the following disclaimer.
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#   notice, this list of conditions and the following disclaimer.
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# - Redistributions in binary form must reproduce the above copyright
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# - Redistributions in binary form must reproduce the above copyright
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#   notice, this list of conditions and the following disclaimer in the
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#   notice, this list of conditions and the following disclaimer in the
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#   documentation and/or other materials provided with the distribution.
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#   documentation and/or other materials provided with the distribution.
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# - The name of the author may not be used to endorse or promote products
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# - The name of the author may not be used to endorse or promote products
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#   derived from this software without specific prior written permission.
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#   derived from this software without specific prior written permission.
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#
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#
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.text
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.text
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.globl __syscall
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.global __syscall
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## Make a system call.
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#
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# @param rdi		First argument.
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# @param rsi		Second argument.
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# @param rdx		Third argument.
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# @param rcx		Fourth argument.
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# @param r8		Fifth argument.
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# @param r9		Sixth argument.
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# @param 8(%rsp)	Syscall number.
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#
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# @return		The return value will be stored in RAX.
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#
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__syscall:
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__syscall:
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	#
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	# rcx gets rewritten on syscall
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	# Move the syscall number into RAX.
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	movslq 8(%rsp), %rax
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	#
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	# Save RCX, the 4th argument, aside because RCX gets rewritten by the
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	# SYSCALL instruction.
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	#
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	movq %rcx, %r9
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	movq %rcx, %r10
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	syscall
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	syscall
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	ret
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	ret
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.end __syscall
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